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d.innerHTML = d.innerHTML + '<a class=\"download_word download_word_lb\" href=\"javascript:;\" id=\"vipdown\" onclick=\"showpay(2)\"><div class=\"download_card\"><div class=\"card_nr card_nr_lb\"><h4 class=\"card_bt\">液晶显示器背光类型及优缺点（LCD、CCFL、LED）</h4><div class=\"download_card_msg\">液晶背光显示原理 液晶不同于等离子的最大区别就是液晶必须依靠被动光源，而等离子电视属于主动发光显示设备。目前市场上主流的液晶背光技术包括LED(发光二极管)和CCFL(冷阴极荧光灯)两类。冷阴极荧光灯管（Cold Cathode Fluo。下面小编给大家分享液晶显示器背光类型及优缺点（LCD、CCFL、LED），希望能帮助到大家。 液晶显示器背光类型及优缺点（LCD、CCFL、LED）文档下载网址链接：</div></div><div class=\"download_card_btn download_card_btn_lb\"><div class=\"content_box_tj\"><span>推荐度：</span><img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\">	<img src=\"/skin/zhann/images/icon_star.png\" alt=\"\"></div><div class=\"downlod_btn_right demo_tc downlod_btn_right_lb\"><em class=\"downlod_icon\"></em>点击下载文档<span>文档为doc格式</span></div> </div></div></a>';
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